Serena Williams confirms written apology from Tarpischev over offensive comments

Serena Williams of the US reacts after hitting an autographed ball into the crowd following her win over Canada's Eugenie Bouchard during their singles match at the WTA tennis finals in Singapore,Thursday, Oct. 23, 2014. (AP Photo/Mark Baker)
(The Associated Press)

Serena Williams of the US prepares to hit autographed balls into the crowd following her win over Canada's Eugenie Bouchard during their singles match at the WTA tennis finals in Singapore,Thursday, Oct. 23, 2014. (AP Photo/Mark Baker)
(The Associated Press)

Russian Tennis Federation President Shamil Tarpischev applauds the participants of the final match at the Kremlin Cup tennis tournament in Moscow in Moscow, Russia, Sunday, Oct. 19, 2014. Russian Tennis Federation President Shamil Tarpischev has been fined $25,000 by the WTA Tour and suspended from tour involvement for a year for questioning Venus and Serena Williams' gender in comments on Russian television. The WTA Tour said Friday, Oct. 17, 2014, that the $25,000 fine is the maximum allowed under tour rules and that it is seeking Tarpischev's removal as chairman of the Kremlin Cup tournament for one year. (AP Photo/Pavel Golovkin)
(The Associated Press)